| Acronym | Meaning |
| PAI | PolyAmide Imide |
| HLA | High Level Architecture - Human Leukocyte Antigen |
| WCL | World Confederation Of Labour |
| SAR | Saudi Riyal (ISO 4217 Currency Code) -Search And Rescue - Special Administrative Region - Synthetic Aperture Radar |
| KAZ | Kazakh Language (ISO 639-2 Code) |
| QR | Quake Rally - Qualitative Reasoning - Queensland Rail - Queen's Rangers - Quick Release - Quiet Riot -Qatar Airways (IATA Airline Designator) |
| YUPPIE | Young Urban Professional + Suffix |
| IFPI | International Federation Of Phonographic Industries |
| TACCSF | U.S. Theater Aerospace Command & Control Simulation Facility |
| SABR | Society For American Baseball Research |